The title compound, C34H52O4, consists of five six-membered rings. Barring
the two rings, with double bonds, all other rings are in chair conformation
s. Mean-plane and ring-puckering calculations indicate these two rings to b
e in distorted-chair conformations, with distortion towards the boat confor
mation. There are no strong hydrogen bonds and the structure is stabilized
by van der Waals interactions only. The structure is compared with those re
ported for other triterpenes.